Thermonic-----You sound like the man I need to talk too !!!! Just got some new parts to you tube sytem in on Christmas eve ( new CD --a Rotel 930 ) and the 26th something went down---either the amp or the pre-amp ---and I have not a clue as what to do --wayne was assiting me ---but need to learn how to do this myself---I have to work most of Saturday helping friend with his daugheter's wedding--I will get back ---no I don't ahve drawings --the amp is a Pilot 18 watt and the pre-amp is a Apt --Holman SS---what's happenig is when I turn on the Volume---there is a little sound--but like it's not amplified??? I'll be back when I 'm free to talk more---Jim and glad to have around---I think you'll find some nice people here ---I have